ScienceDaily: Cosmic Rays News |
| NASA's black-hole-hunter catches its first 10 supermassive black holes Posted: 09 Sep 2013 12:49 PM PDT NASA's black-hole-hunter spacecraft, the Nuclear Spectroscopic Telescope Array, or NuSTAR, has "bagged" its first 10 supermassive black holes. The mission, which has a mast the length of a school bus, is the first telescope capable of focusing the highest-energy X-ray light into detailed pictures. |
| Hubble bubble may explain different measurements of expansion rate of the universe Posted: 09 Sep 2013 06:25 AM PDT The observable universe has been expanding since the Big Bang. It still is, causing galaxies beyond our Local Group to appear to be receding from us. The actual speed of this expansion is known as the Hubble constant. Due to its importance in calculating basic properties of the universe, such as its age, modern cosmology is tasked with determining the value of the constant. There are two conventional methods used, although their results are not congruent, according to researchers. Experts may now be able to explain the different measurements of the expansion of the universe. |
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